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Description
Power Flow (cont'd)
II]
Position
In
ill
position,
hydraulic
pressure
is
applied to the
1st
cl
utch
and
the
1st-hold clutch.
The
power
flow when
accelerating is
as follows:
1. Hydraulic pressure is applied to the 1st
clutch on
the mainshaft,
and
power is transmitted via the 1st clutch to the main-
shaft
1st gear.
2. Hydraulic pressure is
also
applied to
the
1st-hold clutch on the
sub-shaft.
Power transmitted to
the mainshaft
1st gear
is conveyed via the countershaft
1st gear to the one
-way
clutch, and via the sub-shaft 1st gear to the 1st-hold clutch.
The
one-way
clutch
is used to drive the
countershaft, and
the 1st-hold clutch drives the
countershaft via
the 4th gears.
3.
Power is transmitted to the
final
drive
gear,
which drives
the final
driven
gear,
and the transfer
shaft
drive gear (4WD).
4.
The transfer
shaft drive
gear drives the transfer
shaft and
the transfer driven gear shaft
(4WD).
NOTE:
The illustration
shows
the 4WD
automatic
transmission;
power
flow
of
the
2WD
automatic transm ission is identi-
cal
to
the 4WD
except
for parts related to
the transfer
assembly.
14-8
TORQUE
CONVERTER
SU'B.!;HI\FT4TH GEAR
1ST GEAR
MAtNSHAFT
4TH GEAR
1ST·HOLO CLUTCH
COUNTERSHAFT
4TH GEAR
DRtVEN GEAR
TRANSFER SHAFT DRIVE GEAR 14WOI
TRANSFER SHAFT 14WDI
TR,~N~,FER
DRtVEN GEAR SHAFT 14WDI
MA,IN!;H~'FT
1 ST GEAR
1ST CLUTCH
MAtNSHAFT
COUNTERSHAFT
ONE·WAY CLUTCH
PARK GEAR
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